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06-18-2015, 03:49 PM
Thread: Rating mystery stones
by Deckard- Replies
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Pictures 204242204243204244
Pictures
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06-17-2015, 09:21 PM
Thread: Rating mystery stones
by Deckard- Replies
- 14
- Views
- 1,851
I like this, thank you. I have quite a good rock...
I like this, thank you. I have quite a good rock collection so very doable. I'm not averse to using the visual methods, its just I'm not convinced it would tell the whole story by itself. My jnat...
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06-16-2015, 08:17 PM
Thread: Rating mystery stones
by Deckard- Replies
- 14
- Views
- 1,851
Rating mystery stones
Does anyone have a reliable method for estimating the grit rating of an unknown stone, preferably that does not involve magnification?
I can do the basics like can I put an edge on a dull razor or...
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